House extensions in Tonbridge

Tonbridge received 634 householder applications in the last 12 months - about 12 a week. Rear extensions and garage works are the most common. Of the 449 decided so far, 429 were approved. If you're planning your own, the applications below show what people nearby applied for and how the council decided.

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Showing 50 of 153 applications
21 Oct 2026 Registered 26/01818/FL

27 Shakespeare Road Tonbridge Kent TN9 2QE

Extension to front of house incorporating new porch and staircase to first floor, single storey extension across the rear, proposed loft conversion wi...

Planning Permission Tonbridge
21 Oct 2026 Registered 26/01748/FL

Haymens Wharf High Street Wouldham Rochester Kent ME1 3TX

Retrospective application for outbuilding in garden

Planning Permission Tonbridge
16 Oct 2026 Registered 26/01850/FL

1 Hamptons Road Hadlow Tonbridge Kent TN11 9RE

Demolition of existing garage and canopy link and provision of a two-storey side extension and a single storey rear extension with attached raised ter...

Planning Permission Tonbridge
14 Oct 2026 Registered 26/01854/LB

Woodside Cottage 275 Tonbridge Road East Peckham Tonbridge Kent TN12 5LA

Listed Building Application: Addition of a wooden rose arch over the front gate to the property

Listed Building Consent Tonbridge
14 Oct 2026 Registered 26/01845/FL

Beechin Wood Farm Beechin Wood Lane Platt Sevenoaks Kent

Proposed open garage port to House 1

Planning Permission Tonbridge
14 Oct 2026 Registered 26/01691/FL

Land At Park Cottage School Lane Plaxtol Sevenoaks Kent TN15 0QD

Change of use to form part of the residential curtilage of Park Cottage and conversion of existing garage building into ancillary accommodation

Planning Permission Tonbridge
13 Oct 2026 Registered 26/01707/FL

134 Bush Road East Peckham Tonbridge Kent TN12 5LN

Erection of a Greenhouse

Planning Permission Tonbridge
12 Oct 2026 Registered 26/01925/PDVLR

45 Orchard Avenue Aylesford Kent ME20 7LX

Prior Notification for Larger Home Extension (Part 1 Class A): Single storey rear extension to a depth of 6m, maximum roof height of 3.36m, and eaves ...

large residential PD Tonbridge
12 Oct 2026 Registered 26/01828/FL

The Lodge Nizels Nizels Lane Hildenborough Tonbridge Kent TN11 8NU

Single storey orangery extension to rear

Planning Permission Tonbridge
9 Oct 2026 Registered 26/01907/LB

The Lodge Nizels Nizels Lane Hildenborough Tonbridge Kent TN11 8NU

Listed Building Application: Single storey orangery extension to rear

Listed Building Consent Tonbridge
8 Oct 2026 Registered 26/01896/FL

448 London Road Ditton Aylesford Kent ME20 6DA

Single-storey rear extension and front porch, together with installation of 4 rooflights

Planning Permission Tonbridge
8 Oct 2026 Registered 26/01840/FL

Vines Vines Lane Hildenborough Tonbridge Kent TN11 9LT

Dismantle and re-location of existing greenhouse within residential garden

Planning Permission Tonbridge
8 Oct 2026 Registered 26/01720/FL

57 Brookmead Hildenborough Tonbridge Kent TN11 9DP

Demolition of existing garage and proposed loft conversion with hip to gable roof extension. Flat roof dormers to both sides. Single storey extensions...

Planning Permission Tonbridge
7 Oct 2026 Registered 26/01892/FL

Langara Vigo Road Fairseat Sevenoaks Kent TN15 7LT

Replacement of timber windows and doors, to PVCu windows and doors

Planning Permission Tonbridge
7 Oct 2026 Registered 26/01811/LDPDK

52 Westwood Road East Peckham Tonbridge Kent TN12 5DB

Lawful Development Certificate Proposed: Dropped Kerb

Lawful Dev cert Proposed dropped kerb Tonbridge
6 Oct 2026 Registered 26/01881/LDPDK

77 Swallow Road Larkfield Aylesford Kent ME20 6LL

Lawful Development Certificate Proposed: creation of vehicular access, associated dropped kerb and hardstanding/driveway to provide off-street parking...

Lawful Dev cert Proposed dropped kerb Tonbridge
6 Oct 2026 Registered 26/01880/FL

19 Normanhurst Road Borough Green Sevenoaks Kent TN15 8HT

Application to vary condition 2 (approved drawings) of planning permission 26/00133/FL (single storey side extension, single storey rear and side exte...

Planning Permission Tonbridge
6 Oct 2026 Registered 26/01878/FL

The Royal Oak London Road Wrotham Heath Sevenoaks Kent TN15 7RX

New entrance porch, replacement roof tiles and external lighting. 7x internally illuminated fascia signs and 1x free standing internally illuminated s...

Planning Permission Tonbridge
6 Oct 2026 Registered 26/01871/FL

Nutwood House The Street Plaxtol Sevenoaks Kent TN15 0QE

Conversion and extension of existing outbuilding to provide accommodation ancillary to the main dwelling

Planning Permission Tonbridge
5 Oct 2026 Registered 26/01865/LB

Selbys Oast Leigh Road Hildenborough Tonbridge Kent TN11 9AQ

Listed Building Application: Door and window replacements. Thermal upgrade of wall panels and new radiators. External works to 2x external walls, gran...

Listed Building Consent Tonbridge
5 Oct 2026 Registered 26/01864/FL

Selbys Oast Leigh Road Hildenborough Tonbridge Kent TN11 9AQ

Door and window replacements. Thermal upgrade of wall panels and new radiators. External works to 2x external walls, granular trench and 2x corner pos...

Planning Permission Tonbridge
5 Oct 2026 Registered 26/01785/LDP

8 Keyes Gardens Tonbridge Kent TN9 2QD

Lawful Development Certificate Proposed: Dropped Kerb to extend over 8.19 m

Lawful Development Cert Proposed NEW Tonbridge
5 Oct 2026 Registered 26/01794/FL

26 Ashley Road Hildenborough Tonbridge Kent TN11 9ED

Demolish existing rear conservatory. Single storey rear extension

Planning Permission Tonbridge
2 Oct 2026 Registered 26/01853/FL

56 Bell Lane Ditton Aylesford Kent ME20 6BT

Conversion of existing garage to habitable room

Planning Permission Tonbridge
1 Oct 2026 Registered 26/01799/FL

6 Barden Park Road Tonbridge Kent TN9 1XD

Single storey rear extension. Conversion of loft to habitable room incorporating hip to gable and rear dormer

Planning Permission Tonbridge
1 Oct 2026 Registered 26/01847/FL

Chestnut Ridge Pine Tree Lane Ivy Hatch Sevenoaks Kent TN15 0NJ

Single storey rear extension

Planning Permission Tonbridge
1 Oct 2026 Registered 26/01843/FL

10 Springwell Road Tonbridge Kent TN9 2LJ

Amalgamation of two existing self-contained flats into one single dwellinghouse with associated external alterations

Planning Permission Tonbridge
1 Oct 2026 Registered 26/01842/LDP

10 Springwell Road Tonbridge Kent TN9 2LJ

Lawful Development Certificate Proposed: Amalgamation of two existing self-contained flats into one single dwellinghouse with associated external alte...

Lawful Development Cert Proposed NEW Tonbridge
1 Oct 2026 Registered 26/01776/FL

Clements Cottage Forge Lane West Peckham Maidstone Kent ME18 5JP

Erection of car barn

Planning Permission Tonbridge
30 Sept 2026 Registered 26/01829/LDP

The Warrens Pilgrims Way Trottiscliffe West Malling Kent ME19 5EW

Lawful Development Certificate Proposed: Application for the proposed provision of a single unit mobile home (not operational development) within the ...

Lawful Development Cert Proposed NEW Tonbridge
30 Sept 2026 Registered 26/01827/FL

332 Pilgrims Way Wouldham Rochester Kent ME1 3RB

Erection of a Small Garden room to the rear

Planning Permission Tonbridge
30 Sept 2026 Registered 26/01825/FL

8 Lionel Road Tonbridge Kent TN9 2TD

Demolition and removal of existing conservatory and construction of single storey rear extension to include 3 Velux windows and associated works

Planning Permission Tonbridge
30 Sept 2026 Registered 26/01822/FL

Ash Tree Cottage School Lane Shipbourne Tonbridge Kent TN11 9RT

Single storey rear extension

Planning Permission Tonbridge
30 Sept 2026 Registered 26/01821/FL

50 Town Hill West Malling Kent ME19 6QN

Retrospective application: erection of double garage with pitched roof and external retaining walls

Planning Permission Tonbridge
30 Sept 2026 Registered 26/01820/FL

87 Norman Road West Malling Kent ME19 6RN

Single storey side and rear extension

Planning Permission Tonbridge
29 Sept 2026 Registered 26/01812/FL

124 Pound Road East Peckham Tonbridge Kent TN12 5BL

Single storey extension of existing ancillary accommodation and relocation of garden and cycle store, with associated internal and external works

Planning Permission Tonbridge
28 Sept 2026 Registered 26/01808/FL

29 Kings Road Tonbridge Kent TN9 2HB

Erection of an open-sided timber-framed pergola with translucent polycarbonate roof (Retrospective)

Planning Permission Tonbridge
28 Sept 2026 Registered 26/01807/FL

105 Maidstone Road Borough Green Sevenoaks Kent TN15 8HE

Removal of the existing roof and erection of a replacement mansard roof with front and rear facing gables, to provide enlarged first floor accommodati...

Planning Permission Tonbridge
28 Sept 2026 Registered 26/01802/FL

19 Fell Mead East Peckham Tonbridge Kent TN12 5EQ

Single storey front porch and side/rear extension

Planning Permission Tonbridge
28 Sept 2026 Registered 26/01695/FL

36 Hawden Road Tonbridge Kent TN9 1JN

Single storey front extension

Planning Permission Tonbridge
25 Sept 2026 Registered 26/01796/FL

Rookery Dene Long Mill Lane Platt Sevenoaks Kent TN15 8NA

Proposed Single storey rear, glass room extension

Planning Permission Tonbridge
24 Sept 2026 Registered 26/01784/FL

83 The Drive Tonbridge Kent TN9 2LS

Single storey rear extension and roof dormer extension to side

Planning Permission Tonbridge
24 Sept 2026 Registered 26/01791/LDP

4 Charlotte Drive Kings Hill West Malling Kent ME19 4GU

Lawful Development Certificate Proposed: Garage conversion and installation of a new window

Lawful Development Cert Proposed NEW Tonbridge
24 Sept 2026 Registered 26/01781/FL

1 Bo Peep Cottages 57 Lavenders Road West Malling Kent ME19 6HP

Erection of a single storey garden room to existing detached outbuilding

Planning Permission Tonbridge
24 Sept 2026 Registered 26/01738/FL

The Cottage Green Lane Trottiscliffe West Malling Kent ME19 5DX

Construction of a single-storey timber garage on a concrete base, divided into three separate areas comprising a workshop, office, and storage space

Planning Permission Tonbridge
23 Sept 2026 Registered 26/01773/FL

37 Oldfield Drive Wouldham Rochester Kent ME1 3GP

Proposed garage conversion and rear extension to form disabled accommodation with wet room

Planning Permission Tonbridge
23 Sept 2026 Registered 26/01704/FL

27-30 Upper Mill East Malling West Malling Kent ME19 6BF

Replacement of existing timber cladding with fibre cement, wood-effect horizontal cladding; replacement of 2 existing windows with white UPVC conserva...

Planning Permission Tonbridge
22 Sept 2026 Registered 26/01767/LDP

Forest Hall Springwood Park Tonbridge Kent TN11 9LZ

Lawful Development Certificate Proposed: Installation of glazed doors to pool building

Lawful Development Cert Proposed NEW Tonbridge
22 Sept 2026 Registered 26/01648/FL

48 Sycamore Drive Aylesford Kent ME20 7LA

Single storey side extension

Planning Permission Tonbridge
21 Sept 2026 Registered 26/01756/LDP

7 Cromer Street Tonbridge Kent TN9 1UP

Lawful Development Certificate Proposed: Loft conversion and flat roof Dormer

Lawful Development Cert Proposed NEW Tonbridge
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Frequently asked questions

When do you need planning permission for a house extension?
Single-storey rear extensions up to 4m (detached) or 3m (semi-detached / terraced) are usually permitted development. Two-storey extensions, anything in a conservation area, or larger projects almost always need a planning application.
What's the difference between planning permission and permitted development?
Permitted development rights let you build certain things without applying for planning permission, subject to specified limits. Anything outside those limits, whether taller, larger or in a protected area, needs full planning permission.
How long does a householder application take?
The statutory target is 8 weeks from validation. Most simple householder extensions are decided within that window; complex or contested cases, especially those drawing a lot of comments, can take longer.
Can I get email alerts for new extensions applications in Tonbridge?
Yes. Click "Set up alerts" on this page and you'll get a daily or weekly email listing every new extensions application published by Tonbridge. You can also narrow the alert to a postcode, street, or drawn area.

We check Tonbridge's planning portal daily. New extensions applications appear here within a day of being published.